Survey
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Horticultural Classification Whether of wild or cultivated origin, once a selection has been distinguished by a cultivar name it should be assigned to Divisions 1–12. Daffodils distinguished solely by botanical name should be assigned to Division 13. Notes 1. The characteristics for Divisions 5 to 10 are given for guidance only; they are not all necessarily expected to be present in every cultivar assigned to those divisions 2. Divisions 12 and 13 are not illustrated owing to the wide variation in shape and size between the flowers involved DIVISION 1 - TRUMPET DAFFODIL CULTIVARS One flower to a stem; corona (“trumpet”) as long as, or longer than the perianth segments (“petals”) DIVISION 2 - LARGE-CUPPED DAFFODIL CULTIVARS One flower to a stem; corona (“cup”) more than one-third, but less than equal to the length of the perianth segments (“petals”) DIVISION 3 - SMALL-CUPPED DAFFODIL CULTIVARS One flower to a stem; corona (“cup”) not more than one-third the length of the perianth segments (“petals”) 1 DIVISION 4 - DOUBLE DAFFODIL CULTIVARS One or more flowers to a stem, with doubling of the perianth segments or the corona or both DIVISION 5 - TRIANDRUS DAFFODIL CULTIVARS Characteristics of N. triandrus clearly evident: usually two or more pendent flowers to a stem; perianth segments reflexed DIVISION 6 - CYCLAMINEUS DAFFODIL CULTIVARS Characteristics of N. cyclamineus clearly evident: one flower to a stem; perianth segments significantly reflexed; flower at an acute angle to the stem, with a very short pedicel (“neck”) Text & images © RHS 2012 DIVISION 7 - JONQUILLA AND APODANTHUS DAFFODIL CULTIVARS DIVISION 11 - SPLIT-CORONA DAFFODIL CULTIVARS Corona split - usually for more than half its length Characteristics of Sections Jonquilla or Apodanthi clearly evident: one to five (rarely eight) flowers to a stem; perianth segments spreading or reflexed; corona cup-shaped, funnel-shaped or flared, usually wider than long; flowers usually fragrant a) Collar Daffodils Split-corona daffodils with the corona segments opposite the perianth segments; the corona segments usually in two whorls of three DIVISION 8 - TAZETTA DAFFODIL CULTIVARS Characteristics of Section Tazettae clearly evident: usually three to twenty flowers to a stout stem; perianth segments spreading not reflexed; flowers usually fragrant DIVISION 9 - POETICUS DAFFODIL CULTIVARS Characteristics of N. poeticus and related species clearly evident; perianth segments pure white; corona very short or disc-shaped, not more than one-fifth the length of the perianth segments; corona usually with a green and/or yellow centre and red rim, but sometimes wholly or partly of other colours; anthers usually set at two distinct levels; flowers fragrant DIVISION 10 - BULBOCODIUM DAFFODIL CULTIVARS Characteristics of Section Bulbocodium clearly evident: usually one flower to a stem; perianth segments insignificant compared with the dominant corona; anthers dorsifixed (ie attached more or less centrally to the filament); filament and style usually curved b) Papillon Daffodils Split-corona daffodils with the corona segments alternate to the perianth segments; the corona segments usually in a single whorl of six DIVISION 12 - OTHER DAFFODIL CULTIVARS Daffodil cultivars which do not fit the definition of any other division DIVISION 13 - DAFFODILS DISTINGUISHED SOLELY BY BOTANICAL NAME SECTION TAPEINANTHUS Autumn flowering; one to four flowers to a rounded stem; leaves very narrow, glaucous, not always present on flowering bulbs; flower ascending, yellow; corona absent or rudimentary; anthers widely exserted from the tube, much shorter than the filaments, dorsifixed SECTION SEROTINI Autumn flowering; usually one to two flowers to a rounded stem; leaves very narrow, glaucous, not always present on flowering bulbs; perianth segments pure white, usually twisted; corona very short, yellow, orange or green; anthers included in or slightly exserted from the tube, longer than the filaments, dorsifixed; flowers fragrant Text & images © RHS 20122 SECTION AURELIA Autumn flowering; three to twelve flowers to a compressed stem; leaves flat not channelled, glaucous; flowers white; corona rudimentary or absent; filaments unequal in length; anthers exserted from the tube, dorsifixed; flowers fragrant SECTION TAZETTAE Autumn to spring flowering; three (rarely two) to twenty flowers to a usually compressed stem; leaves flat or channelled, usually glaucous; flowers white, yellow or bicoloured; anthers included in or slightly exserted from the tube, much longer than the filaments, dorsifixed; flowers fragrant. The rounded stem and green leaves of N. aureus atypical, also the orange corona of N. elegans SECTION NARCISSUS Spring flowering; usually one flower (exceptionally two to four) to a compressed stem; leaves flat not channelled, glaucous; perianth segments pure white; corona disc-shaped or very shallow, sometimes of a single colour, but usually with base green, mid-zone yellow and rim red or orange and often scarious; anthers partly exserted from the tube, much longer than the filaments, dorsifixed; flowers fragrant. Section covers N. poeticus SECTION JONQUILLA Spring flowering; one to five (rarely eight) flowers to a rounded stem; leaves narrow or semi-cylindrical, green; flowers yellow, never white; perianth segments spreading or reflexed; corona usually cup-shaped, usually wider than long; anthers included in or partly exserted from the tube, much longer than the filaments, dorsifixed; flowers fragrant. The autumn flowering, green-flowered N. viridiflorus is atypical SECTION APODANTHI Spring flowering; one flower or two to five to a somewhat compressed stem; leaves narrow, channelled, glaucous; flowers white or yellow, never bicoloured; perianth segments spreading or slightly 3 reflexed; corona cup-shaped, funnel-shaped or flared, usually wider than long; anthers included in the tube or three included and three exserted, much longer than the filaments, dorsifixed SECTION GANYMEDES Spring flowering; one flower or two to six to an elliptical or cylindrical stem; flowers pendent, white or yellow or somewhat bicoloured; leaves flat or semi-cylindrical; perianth segments reflexed; corona cup-shaped (rarely campanulate); anthers three included in the tube, three exserted (often beyond the corona), equal to or much shorter than the filaments, dorsifixed. Section covers N. triandrus SECTION BULBOCODIUM Autumn to spring flowering; one flower to a rounded stem; leaves narrow, semi-cylindrical; flowers white or yellow; perianth segments insignificant compared with the dominant corona; anthers widely exserted from the tube (often beyond the corona), much shorter than the filaments (which are usually curved), dorsifixed SECTION PSEUDONARCISSUS Spring flowering; usually one flower to a more or less compressed or sometimes rounded stem; leaves flat or channelled, usually glaucous; flowers white, yellow or bicoloured; perianth segments usually spreading or inflexed; corona more or less cylindrical, often flared at mouth, yellow or white (never orange or red); anthers exserted from the tube, equal to or shorter than the filaments, sub-basifixed. The green leaves, rounded stem and strongly reflexed perianth segments of N. cyclamineus and the two to four flowers to a stem of some species including N. alcaracensis, N. longispathus and N. nevadensis are atypical NOTE Hybrids distinguished solely by botanical name are also assigned to this Division. In the Register, daffodils distinguished solely by botanical name are listed separately from those with cultivar or group names (see pages 1371–1386). Text & images © RHS 2012